Using standard deduction. Med insurance is a paycheck deduction pre taxed income. During pandemic I was furloughed and paid $676.60 out of pocket. Can I deduct?

[DoninGA]

You can but it probably will not make any difference on your tax return.  Medical expenses paid with out of pocket funds are an itemized deduction on Schedule A.

The total of all your itemized deductions on Schedule A must be greater than the standard deduction for your filing status to have any tax benefit.

Standard deductions for 2020

Single - $12,400 add $1,650 if age 65 or older
Married Filing Separately - $12,400 add $1,300 if age 65 or older
Married Filing Jointly - $24,800 add $1,300 for each spouse age 65 or older
Head of Household - $18,650 add $1,650 if age 65 or older